[macruby-changes] [MacRuby/MacRuby] 8b4d3b: Optimize the rary_splice().

[noreply at github.com]

  Branch: refs/heads/master
  Home:   https://github.com/MacRuby/MacRuby

  Commit: 8b4d3bd0129c385668b1933ec646a14591661489
      https://github.com/MacRuby/MacRuby/commit/8b4d3bd0129c385668b1933ec646a14591661489
  Author: Watson <watson1978 at gmail.com>
  Date:   2011-06-19 (Sun, 19 Jun 2011)

  Changed paths:
    M array.c

  Log Message:
  -----------
  Optimize the rary_splice().

* before
               user     system      total        real
len == rlen  0.860000   0.000000   0.860000 (  0.852845)
len != rlen 21.180000   0.010000  21.190000 ( 21.186979)

* after
                user     system      total        real
len == rlen  0.050000   0.000000   0.050000 (  0.056620)
len != rlen  0.150000   0.000000   0.150000 (  0.145373)

{{{
require 'benchmark'

Benchmark.bm(10) do |x|
  ary =  Array.new(1000)
  tmp =  ["a"] * 1100
  x.report "len ==  rlen" do
    10000.times do
      ary[100, tmp.size] =  tmp
    end
  end

  x.report "len !=  rlen" do
    10000.times do
      ary[100, tmp.size - 1] =  tmp
    end
  end
end
}}}